Without new economies, our old economies get our jobs taken from them because everyone else has figured out how to do it.

You could do math early, but there are no brilliant 16-year-old novelists. They don't know the human condition yet.

Science is not a subject you took in school. It's life. We are wrapped by it, in it, with it.

Everything we do understand about the universe - the periodic table of elements, Einstein's laws, Newton's laws, all of chemistry, all of biology - that's 4 percent of the universe. We got to the moon on the 4 percent we do understand. We landed on Mars on the 4 percent we do understand. So the day we crack the nut of the rest of that 95 percent... Oh my gosh.

I dream of a world where the truth is what shapes people's politics, rather than politics shaping what people think is true.

In life and in the universe it's always best to keep looking up.

Don't get in the way of children who find it natural and obvious to explore the world around them - even if it means they make a mess of your kitchen or living room. It's all about your perspective on these things. Let them play. When you do, the kids do not have to be reintroduced to ways of questioning nature, and the task of promoting science would be a trivial exercise.